2112001011 has 6 divisors (see below), whose sum is σ = 3050668140. Its totient is φ = 1408000668.

The previous prime is 2112001007. The next prime is 2112001043. The reversal of 2112001011 is 1101002112.

It is a happy number.

It is not a de Polignac number, because 2112001011 - 2² = 2112001007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 234666779 = 2112001011 / (2 + 1 + 1 + 2 + 0 + 0 + 1 + 0 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 2112000984 and 2112001002.

It is not an unprimeable number, because it can be changed into a prime (2112001211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117333381 + ... + 117333398.

It is an arithmetic number, because the mean of its divisors is an integer number (508444690).

Almost surely, 2^2112001011 is an apocalyptic number.

2112001011 is a deficient number, since it is larger than the sum of its proper divisors (938667129).

2112001011 is a wasteful number, since it uses less digits than its factorization.

2112001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234666785 (or 234666782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 2112001011 is about 45956.5121718348. The cubic root of 2112001011 is about 1283.0139367216.

Adding to 2112001011 its reverse (1101002112), we get a palindrome (3213003123).

The spelling of 2112001011 in words is "two billion, one hundred twelve million, one thousand, eleven".